move utility to its own

2 files changed, 30 insertions, 10 deletions

diff --git a/src/leap/mail/imap/messages.py b/src/leap/mail/imap/messages.py
index 80411f9..bfe913c 100644
--- a/src/leap/mail/imap/messages.py
+++ b/src/leap/mail/imap/messages.py
@@ -33,6 +33,7 @@ from zope.proxy import sameProxiedObjects
 from leap.common.check import leap_assert, leap_assert_type
 from leap.common.decorators import memoized_method
 from leap.common.mail import get_email_charset
+from leap.mail.utils import first
 from leap.mail.decorators import deferred
 from leap.mail.imap.index import IndexedDB
 from leap.mail.imap.fields import fields, WithMsgFields
@@ -42,16 +43,6 @@ from leap.mail.messageflow import IMessageConsumer, MessageProducer
 logger = logging.getLogger(__name__)
 
 
-def first(things):
-    """
-    Return the head of a collection.
-    """
-    try:
-        return things[0]
-    except (IndexError, TypeError):
-        return None
-
-
 class MessageBody(object):
     """
     IMessagePart implementor for the main
diff --git a/src/leap/mail/utils.py b/src/leap/mail/utils.py
new file mode 100644
index 0000000..2480efc
--- /dev/null
+++ b/src/leap/mail/utils.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# utils.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+Small utilities.
+"""
+
+
+def first(things):
+    """
+    Return the head of a collection.
+    """
+    try:
+        return things[0]
+    except (IndexError, TypeError):
+        return None